The product contains a chemical precursor to nicotinamide adenine dinucleotide, or NAD, a compound that cells use to carry out metabolic reactions like releasing energy from glucose. The compound is believed cause some effects similar to a diet that is severely short on calories—a proven way to make a mouse live longer.

Could gene therapy help you live forever? CEO of controversial firm claims she has successfully carried out first anti-ageing treatment – on herself. Elizabeth Parrish, CEO of Bioviva, has been using therapies for 6 months. She says the therapy was able to reverse 20 years of telomere shortening.